EP 1066066 A1 20010110 - CLOSED CHEST INTRA-AORTIC BALLOON BASED VENTRICULAR ASSIST DEVICE
Title (en)
CLOSED CHEST INTRA-AORTIC BALLOON BASED VENTRICULAR ASSIST DEVICE
Title (de)
BEI GESCHLOSSENEM THORAX ANGEBRACHTE, AUF EINEM INTRAAORTALEN BALLON BASIERENDE HERZUNTERSTÜTZUNGSVORRICHTUNG
Title (fr)
DISPOSITIF D'ASSISTANCE VENTRICULAIRE A BALLONNET INTRA-AORTIQUE SANS THORACOTOMIE
Publication
Application
Priority
- US 9905172 W 19990310
- US 5249198 A 19980331
Abstract (en)
[origin: US5928132A] A closed chest intra-aortic balloon catheter based ventricular assist device comprising an intra-aortic balloon (IAB) catheter and a pumping chamber having a smaller diameter portion and a more proximal larger diameter portion. The IAB catheter balloon membrane is disposed within the larger diameter portion. The entire device is inserted percutaneously into the aorta of a patient such that the tip of the IAB catheter is just distal to the left subclavian artery and the distal end of the smaller diameter portion is in the left ventricle. The smaller diameter portion has an intake valve at its distal end which acts as a one-way valve allowing blood to flow into the lumen of the pumping chamber but not out of it. The pumping chamber has one or more outlet valves. As the balloon membrane deflates, pressure in the pumping chamber drops below that in the left ventricle, and as a result, blood flows into the pumping chamber. As the balloon membrane inflates, increased pressure in the pumping chamber forces the intake valve shut and forces blood through the outlet valves into the aorta. The pumping chamber becomes substantially rigid after insertion so as to withstand arterial blood pressure.
IPC 1-7
IPC 8 full level
A61M 25/00 (2006.01); A61M 60/139 (2021.01); A61M 60/295 (2021.01); A61M 60/497 (2021.01); A61M 60/865 (2021.01); A61M 60/896 (2021.01)
CPC (source: EP US)
A61M 25/0075 (2013.01 - EP US); A61M 60/139 (2021.01 - EP US); A61M 60/295 (2021.01 - EP US); A61M 60/497 (2021.01 - EP US); A61M 60/865 (2021.01 - EP US); A61M 60/894 (2021.01 - EP US); A61M 60/896 (2021.01 - EP US); A61M 60/274 (2021.01 - EP US)
Citation (search report)
See references of WO 9949911A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 5928132 A 19990727; AT E271398 T1 20040815; AU 3074599 A 19991018; DE 69918816 D1 20040826; DE 69918816 T2 20050818; EP 1066066 A1 20010110; EP 1066066 B1 20040721; ES 2224619 T3 20050301; JP 2002509769 A 20020402; JP 4022372 B2 20071219; WO 9949911 A1 19991007
DOCDB simple family (application)
US 5249198 A 19980331; AT 99912354 T 19990310; AU 3074599 A 19990310; DE 69918816 T 19990310; EP 99912354 A 19990310; ES 99912354 T 19990310; JP 2000540873 A 19990310; US 9905172 W 19990310